Battery: Testing and Inspection
BATTERY INSPECTIONWARNING:
- Since battery acid is toxic, be careful when handling the battery.
- Since battery acid is highly corrosive, be careful not to allow it to contact clothing or the vehicle.
- In case battery acid contacts skin, eyes, or clothing, flush it immediately with running water. Especially if the acid gets in the eyes, flush with water for more than 15 min and get prompt medical attention.
Electrolyte specific gravity
1. Measure the electrolyte specific gravity using a hydrometer.
- If it is less than the specification, recharge the battery. (See BATTERY RECHARGING.)
Battery electrolyte specific gravity: [20 °C (68 °F)]
1.22 - 1.29
Inspection and Verification
1. Verify that the customer concern by operating the system.
Visual Inspection Chart:
2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If an obvious cause for a concern is found, correct the cause before proceeding to the next step.
4. If the fault is not visually evident proceed to the pin point test.
Battery Condition Test
NOTE: Failure to fully charge the battery before retesting may cause false readings.
Pin point test
1. Verify the battery condition using the Battery Analyzer.
- If the meter read, GOOD BATTERY, inspect the generator. (GENERATOR INSPECTION.) Testing and Inspection
- If the meter read, GOOD-RECHARGE, charge the battery and inspect the generator. (GENERATOR INSPECTION.) Testing and Inspection
- If the meter read, CHARGE & RETEST, fully charge the battery and retest.
- If the meter read, REPLACE BATTERY, install a new battery.
- If the meter read, BAD CELL-REPLACE, install a new battery.
Battery
Step 1-Step 3:
1. Inspect the battery as follows:
Load Test Chart:
Load test chart
Standard Specification:
Standard specification
Back-up current
1. Verity that the ignition switch is oft (key has been removed) and that all doors are closed.
2. Disconnect the negative battery cable.
3. Connect the tester between the negative battery terminal and negative battery cable, leave the battery undisturbed for 30 min, and then measure the back-up current.
- If not within the specification, measure the back-up current while removing the fuses one by one from the inside of the main fuse block and the inside of the fuse block.
NOTE:
- If the battery is not left undisturbed for 30 min, the tester will indicate a high value (approx. 300 mA).
- If the key or any electrical accessory is operated within approx. 30 min after the tester is connected, the battery must be left undisturbed for approx. 30 min from that point.
CAUTION: Operating electrical loads while the back-up current is being measured can damage the tester.
NOTE: For vehicles with the immobilizer system, the system periodically shifts synchronization of the security light flashing. Therefore, 45 mA (0.1 s) current is supplied when the security light is illuminated, and 25 mA (2 s) current is supplied when the security light is not illuminated. In addition, the measuring instrument, which shows the average value, indicates around 30 mA.
Battery back-up current
Vehicles with immobilizer system: 25 - 45 mA
Vehicles without immobilizer system: 30 mA or less
4. Inspect and repair wiring harnesses and connectors of the fuse where the current has decreased.